ABB PPC902CE101 | Fiber Optic Communication Board 3BHE028959R0101

The ABB PPC902CE101 (part number 3BHE028959R0101) is a high-speed fiber optic communication interface board designed for ABB’s advanced power electronics and excitation systems, including the UNITROL 6000 and ACS6000 series. This board serves as the primary communication hub for distributing control signals and receiving feedback across the system’s optical network. By utilizing fiber optics, the PPC902CE101 ensures complete galvanic isolation and immunity to electromagnetic interference (EMI), which is critical in high-voltage environments where signal integrity is paramount for system stability.

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Technical Specifications and Datasheet

• Model Number: PPC902CE101
• Part Number: 3BHE028959R0101
• Product Type: Fiber Optic Communication / Processing Board
• System Series: UNITROL 6000 / ACS6000 / AC 800PEC
• Communication Interface: Multiple Fiber Optic Ports (TX/RX)
• Baud Rate: High-speed synchronous data transmission
• Dimensions: 233 mm x 160 mm x 25 mm
• Weight: 0.65 kg
• Country of Origin: Switzerland
• Power Supply: +5V DC (Supplied via the subrack backplane)
• Processor: Integrated high-performance DSP/FPGA for real-time communication management

Application Areas

The PPC902CE101 is a specialized controller board used in large-scale energy and industrial sectors:

• Excitation Systems: Managing the communication between the central controller and distributed power modules in hydroelectric or thermal plants.
• Medium Voltage Drives (MVD): Coordinating the firing pulses and status monitoring for large-scale industrial motor drives.
• Grid Stabilization: Supporting the control logic in Static Var Compensators (SVC) and HVDC systems.
• Marine Propulsion: Governing the communication in high-power electric propulsion systems for ships and offshore platforms.
• Wind Power: Integrating large-scale wind turbine converters into the wind farm’s control network.

Product Usage Instructions

1. Anti-Static Handling: This board contains high-density integrated circuits. Always wear a grounded ESD wrist strap before removing the board from its protective anti-static bag.
2. Installation: Insert the PPC902CE101 into the designated communication slot of the PEC or Unitrol subrack. Align the board with the guide rails and push firmly until the backplane connectors are fully engaged. Secure the board using the front panel screws.
3. Fiber Optic Cabling: Clean the optical fiber connectors with a lint-free cloth and specialized cleaning fluid. Connect the fibers to the RX/TX ports according to the system’s topology (ring or star). Ensure the bend radius of the fiber cables is not too tight to prevent signal attenuation.
4. Commissioning: Upon powering the system, the onboard LEDs will cycle through a self-test. Use the ABB PEC Tool or specialized engineering software to verify the communication link status and ensure all nodes are synchronized.

Common Questions & Answers (Q&A)

Q: Can the PPC902CE101 be used in standard AC 800M PLC racks? A: No. The PPC902CE101 is specifically designed for the PEC (Power Electronics Controller) architecture and Unitrol 6000 subracks. While it shares some design similarities with the AC 800M series, the backplane pinouts and communication protocols are different.

Q: What is the benefit of fiber optics over copper for this board? A: In high-power environments like excitation systems, electrical noise (EMI) is extreme. Fiber optics provide 100% electrical isolation between the high-power converters and the control logic, preventing surges from damaging the electronics and ensuring the signal remains clean.

Q: What should I do if the “Link” LED is off? A: This usually indicates a broken fiber optic cable or a dirty connector. First, try cleaning the optical tips. If the problem persists, use an optical power meter to check the integrity of the cable or swap the PPC902CE101 with a known good unit to rule out a port failure.

Recommended Similar Models

Maintain your power electronics and excitation systems with these related ABB components:

1. ABB PPC907BE – Processing and Communication Board
2. ABB UFC921A101 – Control and Interface Module
3. ABB GFD212A – Gate Driver Interface Module
4. ABB UNINT811 – Interconnect Interface Board
5. ABB PPD512 A01 – Processor Module
6. ABB SD832 – 24V DC 5A Power Supply
7. ABB CI854A – PROFIBUS DP-V1 Interface
8. ABB PM866K01 – AC 800M Processor Kit
9. ABB COB810 – Communication Expansion Link
10. ABB 3BHE039203R0101 – Central Processing Module